This sounds like a pipe issue.

Agree... Try a Nova 9901. Im running it in my truck with a P5 and that thing is a beast. I had to go smaller on the venture to tame the wheel spin as I was burning the tires off. If you don't care to much about fuel mileage, the 2052 is even more awesome. But it costs about 60-90 seconds of run time.

Or the Werks 2058.... one of the best all around pipes for just about every motor out there today. Almost.....

I've said it before and I'll say it again...love my Werks 2058 pipe/header combo!! Awesome on a P5 too!! Lol

Ah, I didn't think about the pipe... I'll buy and try a 9901 then. (I do have an Alpha 2090 laying around if by any chance it could also help?).

Can I use my 41021 manifold with it ?

thanks

Try 9853 / 9901-41021 but is tunning issue, lsn rich. P5 is most torque engine in nova line imo. Others rather smooth

the 41021 manifold hurts top end quite a bit compared to a 41001... so if you want to go faster get rid of the 41021.... Looking at losing roughly 5000 RPM of usable powerband going from the 41021 as compared to the 41001....

A friend is going to lend me his 9901 to test it possibly on Monday . Not sure I can get hold of the 41001 manifold easily there're not common where I am .

By the way I'm using a 6.5mm restrictor/venturi is that ok ?

thanks again

Fyi , i have NEVER once been underpowered using 2096 41021 setup ,EVER and no im not a slow guy , i dont "bash" my cars in a field , I RACE RC CARS

I have had issues with bearings in chassis that made it feel like the engine sucked ,put 4 or 5 engines in and they all did the same thing , replaced all bearings and voila , issue solved , felt free with no load buuuut .......

Viva la novarossi

Guys,
Looking for an engine for my truggy. Considering the p5xlt, or the clio. Pros, cons other suggestions. I have the standard p5xl in my buggy with no issues.
Thanks

With a P5xlt ?

The bearings have all been changed with the P5xlt and are regularly checked one by one every two weeks or so during the full disassembly for cleaning purposes. So I think I'm clear for this problem (gear mech is ok too everywhere and I'm using the std spur with a 13t pinion) .

I just don't understand why my engine doesn't sort of leap forward like the other guys do .

The lsn has been set 1/4 turn rich when the engine started to be a bit lean. It was actually set 1/8 leaner than what I have by the local pros but I found was then a bit of a pig to start.

I'm going to strip the clutch to double check the spring thickness.

Thank you again for all the inputs !

Right I double checked the clutch. The clutch bell is grooved, especially two thin grooves which don't seem to match anything. I first though it was the spring or something but nothing is in line with them (and no more than 0.2mm axial bell movement).
The springs are indeed 1mm thick and the aluminium shoes are not much worn either.

The engine only has 10liters (and always warmed up before starting it) I can feel compression . I can turn exactly 1/2turn freely before hitting compression and I can't turn it by hand.

The Clio is the updated version of the P5XLT, just as the XLT was the updated version to the P5. The Clio has the newer 3 needle carb and lightened head. Pretty much everything else is the same internally... So question is, $300 for the Clio or $190 for the P5...

What I did, was bought a New P5, had it massaged where I wanted it, installed cramics and put on a used Clio head. Came out to be right at the $300 mark. Running it with a 9901/ 41020 pipe and she holds her own against the OS speeds and Virtus motors around here

6.5 mm insert is going to kill your power no matter what pipe and header you run....Increase the size and you will see more power and definitely more RPM....7.5 mm or 8 mm will make a big difference and open that engine up and allow it to breath better.... Add the 41001 manifold to the 2096 and you should see more RPM as well....

Thanks for the info. I played with a few engines in the past and finally found the novarossi worked for me, but being out of the sport a few years did not want to start all over looking for a brand or model engine again.

Did you have Houston tweak it for you?

Lance at RC Renew.... He also did some work on my son's Alpha Dragon. Both are still going strong after a full season on them. Been really happy with them so far. No strange oddities, ghost flames or special things that have to be done.

I have not used HES but do hear a lot of good things about him and his engine program. I would not hesitate to have him work on one of my motors...